Computational Details:

"(Regularized) Driven Cavity (III) at medium Reynolds number with 2 interior squares"

• rectangular domain of height 3 and width 5
• Dirichlet b.c.'s (parabolic with maximum value of 1) for the u-velocity at the top
• Dirichlet b.c.'s (parabolic with minimum value of -0.5) for the u-velocity at the bottom
• other b.c.'s: zero velocity at fixed walls
• initial condition at t=0: starting from rest
• viscosity parameter: 1/nu=20,000

• coarse mesh (=level 2): 52 cells, 75 vertices, 308 d.o.f.`s

  

• uniform refinements with exact boundary adaption
• visualization on level 6: 13,312 cells, 13,695 vertices, 67,328 d.o.f.`s
• computational mesh on level 8: 212,992 cells, 214,527 vertices, 1,068,032 d.o.f.`s
• nonconforming nonparametric rotated bilinear fem's (meanvalue version), UPW

• equidistant time stepping for computation with k=0.033333334
• equidistant time stepping for visualization with k=0.2 (= 1 frame)
• Total time T=100 seconds corresponds to 3,000 time steps
• fractional step theta scheme

• date: 01/26/98
• simulation by: L.Seioukova
• visualization by: L.Seioukova
• SUN ULTRA1/140: 167 MB, 270,457 seconds
• AVS data: 1,082 MB
• Software: FEATFLOW1.0 + BOUSS

• For more details about numerical and algorithmic aspects see the `Mathematical Background' in the FEATFLOW manual or visit our paper archive for much more details.
• The problem-specific data for the applied software version including parameter files and input data can be downloaded here!